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arXiv 2403.00396cs.CVcs.AI
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GLFNET:用于高效医学图像分割的全局-局部(频率)滤波网络

GLFNET: Global-Local (frequency) Filter Networks for efficient medical image segmentation

University of Glasgow(格拉斯哥大学)

Athanasios Tragakis, Qianying Liu, Chaitanya Kaul, Swalpa Kumar Roy, Hang Dai, Fani Deligianni, Roderick Murray-Smith, Daniele Faccio

AI总结:

本文提出GLFNet,用全局-局部频率滤波块替代自注意力,在频率域高效提取医学图像特征,在三个基准数据集上以近两倍GFLOP效率实现最先进分割性能。

摘要:

我们提出了一种新颖的Transformer风格架构,称为全局-局部滤波网络(GLFNet),用于医学图像分割,并展示了其最先进的性能。我们用全局-局部滤波块的组合取代了自注意力机制,以优化模型效率。全局滤波器从整个特征图中提取特征,而局部滤波器则自适应地创建为同一特征图的4x4小块,并添加受限的尺度信息。特别是,特征提取在频率域而非常用的空间(图像)域中进行,以加快计算速度。来自空间和频率空间的信息融合创造了一个在复杂度、所需数据和性能方面都高效的模型。我们在三个基准数据集上测试了GLFNet,在所有这些数据集上都取得了最先进的性能,同时在GFLOP运算量方面几乎高效了两倍。

英文摘要:

We propose a novel transformer-style architecture called Global-Local Filter Network (GLFNet) for medical image segmentation and demonstrate its state-of-the-art performance. We replace the self-attention mechanism with a combination of global-local filter blocks to optimize model efficiency. The global filters extract features from the whole feature map whereas the local filters are being adaptively created as 4x4 patches of the same feature map and add restricted scale information. In particular, the feature extraction takes place in the frequency domain rather than the commonly used spatial (image) domain to facilitate faster computations. The fusion of information from both spatial and frequency spaces creates an efficient model with regards to complexity, required data and performance. We test GLFNet on three benchmark datasets achieving state-of-the-art performance on all of them while being almost twice as efficient in terms of GFLOP operations.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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